Refrigerator



(No Model.)

W. W. DUNN.

REFRIGERATOR.

Patented Feb. 15, 1887.

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ATTORNEYS.

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NITED STATES g PATENT OFFICE.

lVILLIAM XV. DUNN, OF FORT VORTH, TEXAS.

REFRIGERATOR.

SPECIFICATION forming part of Letters Patent No. 357,953, dated February 15, 1887.

Application filed February 4, 1886. Serial No. 190,878. (X0 model.)

To all whom it may concern.-

Be it known that I, WILLIAM W. DUNN, of Fort \Vorth, in the county of Tarrant and State of Texas, have invented a new and useful Improvement in Refrigerators, of which the following is a description.

My invention is an improvement in refrigerators; and it consists in certain details of construction and combinations of parts, as will be hereinafter described.

In the drawings, Figure 1 is a vertical longitudinal section, and Fig. 2 a vertical crosssection, of my refrigerator.

The walls of the refrigerator are insulated by linings of felt, paper, and zinc, and may be packed with any suitable filling. The cooling chamber or box A may be termed the base or main portion of the refrigerator, and it is formed of a long low shallow box, having its bottom usually inclined slightly from one to the other end. At the lower end of the box I provide an upwardly extended ventilatingpipe, 13, for the purpose of passing off all effluvia or foreign substances that may arise from the meats, vegetables, or other substances that maybe placed in the cooling-box, thereby pro venting the commingling of flavors. The box is also provided with a drip-pipe, O, by which to discharge the water resulting from the melting of the ice. In the cooling-chamber I provide a shelf, D, having hooks d at its edge, by which to properly support the articles it is desired to refrigerate. In the top of the coolingboxI form door-openings, and provide doors E for closing them.

An arch-frame, F, is mounted on the cooling-box, and has guide-pulleys f and vertical weightways G. Cords H are secured at one end to the doors E, and are carried thence over pulleys f, and have their outer ends secured to weights h, movable in the incased ways H. By forming the door-openings in the top of the cooling-box I avoid the exit of cold air and the entrance of warm air when the doors are opened.

The ice-box I is located on and communicates with one end of the cooling-box. The

ice support or grating J is located at the lower end of the ice-box, and may be supplied with ice through the doors K, at the lower end of which I provide a shelf, L, to facilitate supplying ice to the grate.

The drippings from the ice, it will be seen, fall onto the floor of the cooling-box, pass to the other end, and thence out of the drip-pipe.

The water-tank M is arranged in the top of the ice-box, resting upon grates, and may be communicated with through a door, N, which has a cord-and-weight connection, as shown. The pipe 0 connects with this tank and extends down past the ice support or grating, below which it is disposed in coils 0, and thence is extended through and out of the casing and has a suitable faucet. Below this faucet I arrange a cup-shelf having a wastepipe.

The water-tank has an overflow-pipe, P,and a feed-pipe, Q. This feed-pipe has a faucet or other suitable valve, to which I connect one end of an arm, 1', on the other end of which is supported a float, B. By this construction, when the water in the tank is low, the float opens the valve and permits water to flow in, the valve being closed by the float when the water rises to the desired level.

It is preferred to form the tank or box M in three sections or receptacles. No. 1 is the first receptacle,into which the water is supplied by feed-pipe Q and the amount controlled by balLvalve. The water is permitted to rise in section 1 until it overflows the first partition. The water has no other exit except by overflow. Box 1 becoming full, itruns over partition into 2, which is the filter proper. It is filled with charcoal and gravel. The box is perforated at the lower left-hand side, close to the bottom, hence necessitating the water to flow through the charcoal and gravel placed in box N o. 2. After flowing through the filter or box No. 2 it passes through the lower ends of said box into box No. 3, or main receiver. From thence it is drawn off by the exhaust-pipe, lying in coils under ice-frame.

A door, T, is formed in the casing above the float, through which the workings of said float may be adjusted.

It will be noticed that the coils 0 are arranged below and adjacent the grating J, which supports the ice. By this arrangement the water in the pipes is cooled by the proximity of the ice and the drippings therefrom, while the ice is not wasted by a direct contact with the coils.

By arranging the doors of my refrigerator the cooling-box having top doors, the overhanging frame, guide pulleys, cords, and weights, the ice-box having an ice support or grate in its lower end, a water-tank in the upper end of said ice-box, and a discharge-pipe connected with the tank and having its lower portion disposed in coils below the ice support or grate, substantially as set forth.

WILLIAl\I W. DUNN.

Witnesses:

J. S. PITTINGER, L. F. O. DUHIGG. 

